New Block Creation

Read docs/platform/block-sdk-guide.md first for the full guide.

Steps

1. Provider config (if external service): create _config.py with ProviderBuilder
2. Block file in backend/blocks/ (from autogpt_platform/backend/):
   • Generate a UUID once with uuid.uuid4(), then hard-code that string as id (IDs must be stable across imports)
   • Input(BlockSchema) and Output(BlockSchema) classes
   • async def run that yields output fields
3. Files: use store_media_file() with "for_block_output" for outputs
4. Test: poetry run pytest 'backend/blocks/test/test_block.py::test_available_blocks[MyBlock]' -xvs
5. Format: poetry run format

Rules